If team Gai were present during Nagato's assault..

[Guitar Hero]

Theres a reason why Kishi conveniently had Team Guy out on a mission.

Pein would have gotten by cornered/neg buy Guy(7th Gates) and steam rolled when SM Naruto showed up.

 

[Natsu Shazneel]

Theres a reason why Kishi conveniently had Team Guy out on a mission.

Pein would have gotten by cornered/neg buy Guy(7th Gates) and steam rolled when SM Naruto showed up.

Team Gai with Hinata would have been sweet. Would have loved Neji to appear to save Hinata when she is down on her knees. Hinata and Neji combining there powers to take on Pein. Showing what the Hyuuga are truly about. Rock Lee and Gai team up to show the power of youth. While Tenten plays the support who provides them with weaponry. This would be amazing fanservice for the fans.

 

[Illuminater]

Kishimoto stated that they were gone because they countered Pain and would have beaten him or at least made the fight much easier for naruto.
Thread soloed.

 

[Nick01]

Pain would've lost quicker.